Cummins Cumberland is comprised of complementary business units that design, manufacture, distribute, and service electric power generation systems, engines, fuel systems, controls, air handling, filtration, and emissions solutions. The company has been in business for more than 75 years. Cummins manufactures engines and aftermarket products for heavy- and medium-duty trucks, buses, RVs, and light commercial vehicles, and for equipment in the construction, agricultural, mining, marine, rail and government markets. The Cummins Power Generation Business is a global provider of electric generators, power systems, and related accessories, components and services. Products include diesel and gas generators used in recreational vehicles, commercial vehicles, and pleasure boats plus diesel and gas generator sets, transfer switches, and switchgear used in commercial facilities for emergency back-up and prime power.